Attractiveness of an Aggregation Pheromone Lure and Chicken Droppings to Adults and Larvae of Alphitobius diaperinus (Coleoptera: Tenebrionidae)

Singh, N.; Johnson, D. T.

Response of lesser mealworm larvae to a range of pheromone lure (lesser mealworm lure) doses, 20 g each component of lesser mealworm lure, 10 g CDV, 2 g fresh CD, and a combination of 20 g lesser mealworm lure with 10 g CDV or 2 g CD in laboratory two-choice pitfall bioassays at air ßow rate of 0.5 liter/min. Lesser mealworm lure contains: (R)-(ϩ)-limonene, (E)-␤-ocimene, (S)-(ϩ)-linalool, (R)-(ϩ)-daucene, and 2-nonanone in 9.6: 60.0: 9.6: 17.3: 3.5 ratios, respectively. CDV contains: 2-methyl-propanoic acid, 2,3-butanediol, butanoic acid, 2-pentanone, 1-octen-3-ol, 2-chlorocyclohexanol, pentanoic acid, and dodecanal in 3.3: 27.9: 10.8: 5.4: 12.1: 17.3: 17.6: 5.6 ratios, respectively. Response index ϭ (T Ϫ C/Tot)*100, for which T is the number responding to the treatment, C is the number responding to the control, and Tot is the total number of larvae released. Data are expressed as means Ϯ SE (N ϭ 4). Bars with different letters are signiÞcantly different (P Ͻ 0.05; Tukey Kramer HSD-test). Experiment had a randomized complete block design, with six traps for each pheromone and control within each of four blocks, replicated on 3 d. Analysis was on log (X ϩ 1) transformed data. Within a day, or for overall means, values followed by the different letter are signiÞcantly different (P Ͻ 0.05; ANOVA).